So here's my problem. I have a rather new computer.
and the games really runs slow. I have the newest version of the game and drivers for my graphic card. Even with the lowest graphics the game runs slow.
BUT when I tab out of the game and then tab in again it runs really smooth for about 5 seconds and after that it runs really slow again.

------------
DxDiag Notes
------------
DirectX Files Tab: No problems found.
Display Tab 1: The file nv4_disp.dll is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Display Tab 2: The file nv4_disp.dll is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Sound Tab 1: No problems found.
Music Tab: No problems found.
Input Tab: No problems found.
Network Tab: No problems found.

So here's my problem. I have a rather new computer.
and the games really runs slow. I have the newest version of the game and drivers for my graphic card. Even with the lowest graphics the game runs slow.
BUT when I tab out of the game and then tab in again it runs really smooth for about 5 seconds and after that it runs really slow again.

------------
DxDiag Notes
------------
DirectX Files Tab: No problems found.
Display Tab 1: The file nv4_disp.dll is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Display Tab 2: The file nv4_disp.dll is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Sound Tab 1: No problems found.
Music Tab: No problems found.
Input Tab: No problems found.
Network Tab: No problems found.